My friend needs help, alchohol and depression, I need ideas?

My friend has lost her husband, her business, and her mother for starters. She is seeing a therapist and is on medication regularly. I care about her and her kids alot and feel helpless. I was the nanny for the kids for over eight years and they are very important to me. I have told her that I was willing to do anything , take care of the kids, her job and so on if she went into a program. She says no and comes up with every excuse imaginable. I also need to say that she has lost her licence due to DUI, twice! I have been the one driving her around every where. I have not coddeled her, I am straight forward and now I may have messed up big time. I called her therapist and told her what's going on and the therapist said that she will have to tell her that we spoke and what about. Now I am afraid because I will not be able to keep and eye on her nor make sure the kids are ok. I hate myself for getting so scared about this situation and need some advice? DCF is already involved, help?